Work Step by Step
A: 220 ft/s B: 200 ft/s, .25 second headstart $220x=y$ $200x+50 = y$ $220x=200x+50$ $220x-200x = 200x+50-200x$ $20x=50$ $20x/20 = 50/20$ $x=2.5$ $2.5+.25 =2.75$
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